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Need help with S107G
Tags: Syma X9
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MTehrani
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January 28, 2012 - 6:01 am
Member Since: January 24, 2012
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Team S107,

My Syma S107G has stop lifting off the ground. I have replaced the battery, both motors and the shaft. The motors are running with a lower RPM and screeching sound. The Heli just does not have enough power to get off the ground.

Has anybody else seen this issue? If yes, How did you fix it?

Thanks,

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Freeonthree
Red Bluff, california
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January 28, 2012 - 4:37 pm
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Screeching sounds like the gears are stripped, and would make the blades go slower. Look closely at the teeth, and make sure the tips of the teeth are sharp yet slightly rounded, not flat, meaning their stripped.

If the gears are fine, and nothing is bound up, look for a bad connection at one or more of the heavier wires feeding the motors. Ever hear a cars starter whine with a high pitched tone when the battery power is low, and cant turn the engine ?

These little motors can do that too. Is the sound electronic, or mechanical, slippage of nylon gears ?   Dennis

PS: can you email me a video with sound to freeonthree@snowcrest.net 

I think 15 to 30 seconds should work by email ok...   

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MTehrani
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January 31, 2012 - 1:46 am
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Thank you for your information. I have ordered new gears and I'll get them installed to see if that will help. The connection to the motor seems to be fine, but once I get the new gears, I'll check them again. I'll let you know if that solves the problem.

 

Thanks again for your help.

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Old_Iron_Spine
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January 31, 2012 - 3:00 am
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Good job Freeonthree, I was going to say it's either a stripped gear, or a slipped gear. A slipped gear makes that sound too, but two gears aren't touching, and if they are touch, it's just the very tip of the corner, which causes that screeching.

God bless,
Old_Iron_Spine

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Freeonthree
Red Bluff, california
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January 31, 2012 - 8:25 am
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I hope that fixes it up.  Dennis

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